The lesser expensive Shunyata power cords (or any other brand) as long as you are sure they will fit into your IEC.
I definitely heard an improvement in the bass, with my Von Schweikert dB 99 speakers when I upgraded the power cords to the Shunyata Diamond Back power cord. I would think any good 12 gauge professionally made or DIY power cord should do the trick.
I definitely heard an improvement in the bass, with my Von Schweikert dB 99 speakers when I upgraded the power cords to the Shunyata Diamond Back power cord. I would think any good 12 gauge professionally made or DIY power cord should do the trick.